Custard Sauce Recipe ingredients

• 1 egg yolk
• 2/3 cup milk
• 1 teaspoon sugar
• A few drops of vanilla

To prepare this Custard Sauce Recipe, first heat the milk in a double boiler. When hot, stir a little of it into the beaten yolk and the sugar, and mix well; then pour the yolk mixture into the hot milk, and continue stirring until it lightly coats a silver spoon lifted out of the same. Set in a dish of cold water to cool. Add vanilla flavor.